FRB 20230815C
A burst from FRB20220912A
- Repeater
- FRB20220912A
- Event ID
- 311852888
- Arrival, 400 MHz
- 2023-08-15 09:42:03.337 UTC
- Right ascension
- 349.161°
- Declination
- 48.803°
How the sub-bursts differ
This burst has 3 sub-bursts. These 8 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.
| Measurement | Sub-burst 1 | Sub-burst 2 | Sub-burst 3 |
|---|---|---|---|
| Arrival time, 400 MHzMJD | 60171.40420516288 | 60171.40420529126 | 60171.40420536464 |
| Arrival time, infinite frequencyMJD | 60171.40413903415 | 60171.404139162536 | 60171.404139235914 |
| Width (fitburst)s | 0.005584 | 0.001812 | 0.001241 |
| Peak frequencyMHz | 640.5 | 628.0 | 623.0 |
| Lowest frequencyMHz | 575.6 | 564.4 | 554.2 |
| Highest frequencyMHz | 712.8 | 698.8 | 700.3 |
| Spectral index | 189.53 | 181.75 | 148.95 |
| Spectral running | -201.50 | -201.69 | -168.28 |
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Notes
- This event should be excluded from parameter inference due to non-nominal telescope operation.
- The pulse emission region was extended during fluence estimation.
- Exposure. Event occurred during a period when the L4 metadata system was offline or misconfigured and should be excluded from population studies.
Position
ra- 349.161± 0.181degrees
dec- 48.803± 0.180degrees
gl- 107.28degrees
gb- -11.17degrees
Detection and dispersion
bonsai_snr- 22.4
snr_fitb- 59.0
bonsai_dm- 224.8pc cm⁻³
dm_fitb- 220.5286± 0.06274pc cm⁻³
dm_exc_ne2001- 98.8pc cm⁻³
dm_exc_ymw16- 101.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 60171.40420529126± 1.23 × 10⁻⁸MJD
mjd_infDiffers between sub-bursts.- 60171.404139162536± 2.25 × 10⁻⁸MJD
Burst shape
bc_width- 0.02851s
width_fitbDiffers between sub-bursts.- 0.001812± 0.0002819s
scat_time- 0.008963± 0.0026987s
Flux and spectrum
flux- 1.20± 0.40Jy
fluence- 13.58± 4.31Jy ms
peak_freqDiffers between sub-bursts.- 628.0MHz
low_freqDiffers between sub-bursts.- 564.4MHz
high_freqDiffers between sub-bursts.- 698.8MHz
sp_idxDiffers between sub-bursts.- 181.75± 33.09
sp_runDiffers between sub-bursts.- -201.69± 36.16
Exposure and fluence thresholds
exp_up- 129.07± 57.80hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 2.6Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 7.1Jy ms
Fit quality
chi_sq- 1785967.967
dof- 1789435
flag_frac- 0.326